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SW605 Week 9 Flashcards | StudBud
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SW605 Week 9
SW605 Week 9
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SW605 Week 9
Flashcards
30 cards
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Practice quiz
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Questions
30
Answers
1
With a
p
value of 0.03, the relationship between variables is moderate.
True
False
2
Convention for a small effect size?
0.80
0.10
0.30
0.50
3
Formula for relative risk ratio?
p/q
q/p
q/r
r/q
4
For odds ratios less than 1, a negative relationship is present.
True
False
5
Formula for odds ratio?
[q/(1-q)] / [p/(1-p)]
[p/(1-q)] / [q/(1-p)]
[p/(1-p)] / [q/(1-q)]
[q/(1-p)] / [q/(1-q)]
6
Tells you about the direction of relationship between variables in a correlation coefficient?
A Bodhisattva called Jim
Sign (+/-)
Magnitude of number
Proximity to 0
7
What correlation & test statistic for dichotomous IV & DV?
Phi; X2
Point-biserial; t
Cramer's V; X2
eta; F
8
Curvilinearity, outliers, range restriction, & unreliability bias correlations.
True
False
9
Effect size & accompanying CI give direction of relationship (except for η, ω and V)
True
False
10
Which factors that bias correlations might be seen on a scatterplot?
Crop circles, man.
Outliers; range restriction
Curvilinearity; unreliability
Curvilinearity; outliers
11
What do you get if you square r?
Proportion of variance in IV accounted for by DV
Proportion of correctness of conclusion to reject null
Proportion of correctness of conclusion to accept null
Proportion of variance in DV accounted for by IV
12
With a negative correlation, values of IV go up while values of DV go down.
False
True
13
The range for an odds ratio is __ to __.
- ∞, + ∞
0, + ∞
-1, 1
- ∞, 0
14
What correlation and test statistic for multicategorical IV, interval DV?
Spearman's rho; X2
Spearman's rho; t
eta; F
eta; Cramer's V
15
Probability that an even will occur greater than probability it won't?
Odds = ∞
Odds = 1
Odds < 1
Odds > 1
16
Which correlation & test statistic is used for interval IV & DV?
Pearson's r; t
eta; F
Pearson's r; F
eta; Cramer's V
17
Sample size has a heavy influence on correlation coefficients.
True
False
18
What correlation & test statistic for dichotomous IV & interval DV?
Pearson's r; t
Phi; X2
Point-biserial; t
eta; F
19
Probability that an event will occur same as probability that it won't occur?
Odds = 1
Odds = 0.5
Odds = 0
Odds = ∞
20
A correlation coefficient of 0 means there is no relationship between variables.
False
It's too personal of a question to ask. We barely know them.
True
21
A d-index of .20 indicates that there is a .20 SD difference between groups.
True
False
22
_ is strength & direction (typically) of relationship between variables, given by _from sample
INXS size; NCIS
Cramer's V; CI
Effect size; CI
NOFX size; CI
23
What is the appropriate graph for correlation coefficients?
Scatterplot
3D modeling
Bar graph
Histogram
24
If
p
> 0.05, we accept the null.
True
False
25
Which of these is NOT given by effect size & accompanying CI?
Precision of estimated effect size
Decision regarding null hypothesis
Strength of relationship
Direction of relationship in all circumstances
26
Tells you about strength of relationship between variables in a correlation coefficient?
Numerical value of coefficient
Intuition
A Bodhisattva called Jim
Sign (+/-)
27
What correlation & test statistic for ordinal IV & DV?
Spearman's rho; t
Phi; X2
Spearman's rho; X2
Phi; t
28
Convention for a large effect size?
0.10
0.50
0.30
0
29
Smaller sample sizes give __ test statistics and __
p
values.
smaller; larger
larger; smaller
smaller; medium-strength
larger; maximum-strength
30
What correlation & test statistic for multicategorical IV & DV?
Wayne Kramer's Flying V; MC5
Pearson's r; t
eta; F
Cramer's V; X2
